Positron lifetime studies in vinyl polymers of medical importance

M. F. Ferreira Marques, P. M. Gordo, C. Lopes Gil, Z. Kajcsos, M. H. Gil, M. J. Mariz, A. P. De Lima

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Vinyl polymers used as artificial lens implants in ophthalmology were investigated by positron lifetime spectroscopy. The structure of these polymers with free volumes offers the possibility of charging them with anti-inflammatory drugs for sustained release. A correlation between the amount of normalised free volume and the ratio of the methyl methacrylate to ethyl-hexyl-acrylate, used as polymerisation monomers, was found.

Original languageEnglish
Pages (from-to)485-488
Number of pages4
JournalRadiation Physics and Chemistry
Volume68
Issue number3-4
DOIs
Publication statusPublished - Oct 2003

Fingerprint

vinyl polymers
positrons
ophthalmology
life (durability)
acrylates
charging
drugs
polymerization
monomers
lenses
polymers
spectroscopy

Keywords

  • Free volume
  • Intra-ocular lenses
  • Pore size
  • Positronium
  • Vinyl polymers

ASJC Scopus subject areas

  • Radiation

Cite this

Ferreira Marques, M. F., Gordo, P. M., Lopes Gil, C., Kajcsos, Z., Gil, M. H., Mariz, M. J., & De Lima, A. P. (2003). Positron lifetime studies in vinyl polymers of medical importance. Radiation Physics and Chemistry, 68(3-4), 485-488. https://doi.org/10.1016/S0969-806X(03)00213-5

Positron lifetime studies in vinyl polymers of medical importance. / Ferreira Marques, M. F.; Gordo, P. M.; Lopes Gil, C.; Kajcsos, Z.; Gil, M. H.; Mariz, M. J.; De Lima, A. P.

In: Radiation Physics and Chemistry, Vol. 68, No. 3-4, 10.2003, p. 485-488.

Research output: Contribution to journalArticle

Ferreira Marques, MF, Gordo, PM, Lopes Gil, C, Kajcsos, Z, Gil, MH, Mariz, MJ & De Lima, AP 2003, 'Positron lifetime studies in vinyl polymers of medical importance', Radiation Physics and Chemistry, vol. 68, no. 3-4, pp. 485-488. https://doi.org/10.1016/S0969-806X(03)00213-5
Ferreira Marques, M. F. ; Gordo, P. M. ; Lopes Gil, C. ; Kajcsos, Z. ; Gil, M. H. ; Mariz, M. J. ; De Lima, A. P. / Positron lifetime studies in vinyl polymers of medical importance. In: Radiation Physics and Chemistry. 2003 ; Vol. 68, No. 3-4. pp. 485-488.
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